Tension mechanism for revolving spindles on creel frames



Nov. 4 1924-. 1514.486 J. F. WATSON TENSION MECHANISM FOR REVOLVING SPINDLES ON CREEL FRAMES Filed May 26, 1922 /.a la a Patented Nov. 4, i924 nausea stares retest TENSION" MECHANISM FOR REVOLVING SPINDLES .ON CREEL FRAMES.

Application filed. May 26, 1922.

To all whom it may con-061%:

Be it known that l, JOSEPH FRANK VVAT- son a citizen of the United States, residing at Winnsboro, Fairfield County, State of South Carolina, have invented certain new and useful Improvements in Tension Mechanism for Revolving Spindles on Creel Frames, of which the following is a specification.

This invention relates to means for regulating the tension on thread drawn from spools in weaving by a braking action applied to the spindle carrying the spool and is particularly adapted for use with the revolving creel frame spindle used for the warp threads. It embodies a spindle rotatively mounted in hearings in a support attached to the frame and adapted to receive on it a spool carrying thread and to so engage the spool that it will rotate in its bearings with the spool as the spool is turned in drawing off threads and an adjustable friction brake for interposing the resistance to turning required to secure the desired tension on the thread. It further includes means for simultaneously and similarly regulating the resistance to turning of a series of spindles in line on the frame thereby simultaneously and uniformly regulating the tension of the threads drawn from said spools. It has the advantages of insuring that all warp ends will have the same tension on them' at all times and there will be no slack ends and will thus produce high grade first class goods. It makes it possible to satisfactorily work direct from the creel frame to the 100111 doing away with the necessity for a beamer thus saving the power which would be consumed by the beamer, saving the labor necessary to op- I erate it and the floor space which it would occupy The novel features will be more fully understood from the following description and claims taken with the accompanying drawings.

In the drawings:

Fig. l is an edge view of part of a creel frame having spindle supports thereon and showing the brake mechanism constituting the present invention in place thereon one of the spindle supports being shown; in section;

Fig. 2 is a vertical section through a series of spindle supports inline supported by the Serial No. 563,928.

frame on a line corresponding to the line 22 of Fig.1; and v V Fig. 3 is a detached perspective View ,of the spindle support alone. i

in the device shown in the drawings for the purpose of illustrating the invent-ion, 1O represents the well known upright creel frame composed. of the parallel vertical strips 11 equally spaced and corresponding horizontal strips 12. Supporting pins 13 are secured to the frame at fixed intervals longitudinally in line and project laterally therefrom and are adapted to carry the supports for the spindles. The spindle supports in the form shown embody end bearing mem bers let and 15 connected by an integral bridge bar 16 and have in their lower portions aligned bearing openings 17 and 18 for the enlarged end 19 ofthe spool spindle 20 and in their upper portions they have aligned openings 21 and 22 through which the supporting pin 13 on the creel frame may pass when the support is placed in position on the frame. Screws 23 and 24 extending downwardly from the top serve to rigidly clamp the support to the rod 13 and thus to the frame. The spindle 20 is rotatably mounted in the bearings 17 and 18 and collars 25 and 26vare secured to it on the inner sides of the bearing members 14: and 15 so as to prevent longitudinal movement of the spindle in the bearings. The spindle is adapted to receive over its outer end the well known spool 27 carrying a winding of thread but has near the hearing member 14 a cross pin 28 in the path of the lower end of the spool 27 The spool has radial slots 29 in its end of such. size that the cross pin 28 may enter them as the spool is pushed upward on the spindle thus interlocking the spool andspindle and causing them to rotate together. At the outer end of the spindle 20 a socket opening 30 is formed longitudinally with a side slot 31 at the end. A trigger 32 in the shape of a short piece of metal of less width than the spindle and preferably flat is pivoted at 33 to the end of the spindle in the socket and in such position that it may extend out through the side slot 31 across theend of the spool as shown in Fig. 1. A coil spring 34 in the socket 30 presses on the end of the trigger 32 so as to hold it in the position shown in Fig. 1 or when turned 90 to a position in line with the spindle to hold it in that position by pressure on its end. This trigger mechanism serves as a lock for normally holding the spool on the spindle and preventing accidental displacement, but it may be easily released because of the out-turned end of the trigger 82.

The brake mechanism which constitutes the main feature of the present invention embodies a brake member 35 preferably formed of a thin strip of metal riveted at one end to the bridge bar 16 by rivets 36 and extending downwardly and under the portion of the enlarged end 19 of the spindle between the bearing supports 14 and 15 and between the collars 25 and 26 and its free end is bent upwardly to a point above the spindle section 19 and has an opening therein. A brake liner 37 of any suitable material is placed on the face of the brake member 35 around the spindle section 19 to exert friction on the spindle when pressure is applied. A. .screw threaded rod 38 passes through an opening in the bridge bar 16 in a plane above the upper surface of the spindle 19 and also passes through the opening 39 in the end of the brake strap which pro-- jects upwardly beyond the spindle. This screw threaded rod may be connected to the upwardly projecting end of the brake member in any suitable way but in the preferred form it is connected by two screw threaded nuts 10 and. 41 on the rod which are moved to position on opposite sides of the brake end clamping it between them. This gives a rigid connection betweenthe end of the brake and the rod for purposes of movement when the rod is moved longitudinally but at the same time permits adjustment of the connection longitudinally of the rod. A screw threaded wing nut 42 fits the outer end of the rod 38 and bears againstthe outer face ofthe bridge member 16 and therefore it will be seen that when this nut is turned to draw the rod through the opening in the bridgemember the free end ofthe brake strap will be so drawn as to tighten its grip on the spindle thus increasing the friction and resistance to turning and thus the tension of the thread being drawn from the spool carried by that spindle. The adjustable means for connecting the brake end to the screw threaded rod 38 makes it possible to use a single rod 38 as shown in Fig. 2 passing through a series of spindle sup ports which are on a horizontal plane in succession and passing through the brake mechanism of each in the same way as above described. It will thus be seen that in this arrangement any turning of the nut 42 will cause a corresponding movement of the brake mechanism for each of the spindles in the series and by this means uniform tension may be easily secured on all spools. If anything causes the tension on one spool to vary from the others the matter may be quickly remedied by adjusting the nuts a0 and 1-1 on that spindle so as to get the desired tension.

Although one specific embodiment of my invention has been shown for purposes of illustration it will be understood that it is not limited to the form shown beyond what is called for in the claims.

hat I claim as my invention and desire to secure by Letters Patent is:

1. In a device of the class described, the combination with a spindle of a supportadapted to be attached to a creel frame having two spaced bearings receiving and rotatively supporting the end of the spindle the said spindle being adapted to so engage if a spool of thread placed on said spindle as to cause simultaneous rotation of said spool and spindle, a flexible brake member carried by said support partly surrounding said spindle between said bearings making frictional surface contact therewith and manually operable means for varying the, tension on said brake and its operative effect.

2. In a device of the class described, the combination with a spindle of a support adapted to be attached to a creel frame having two spaced bearing members provided with aligned bearing openings receiving and rotatively supporting one end of said spindle and a bridge bar at one side connecting said members, a flexible metal strip secured at one end to said bridge bar above said bearings extending under said spindle and then upwardly with brake lining on its upper surface in contact with said spindle, a screw threaded rod secured at one end to the upwardly extending end of said metal strip and extending over said spindle and through said bridge bar, and a thumb nut on the end of said rod adapted when operated to exert pressure on said bridge bar and a pull on said strip thus increasing the frictional braking action on said spindle;

3. In a device of the class described, the combination with a creel frame, of a series of spindle supports arranged in a straight line rotatively supporting spindles projecting laterally from said frame, each spindle being adapted to receive and rotate with a spool of thread, an adjustable brake on each support for regulating the resistance of its spindle to turning and means extending from the end of said frame by said supports in succession operatively connected to said brakes for simultaneously operating said brakes.

1. In a device of the class described, the

combination with a creel frame, of a series of spindle supports arranged in a straight line on said frame, rotatively supported spindles on said supports projecting laterally from said frame, each spindle being adapted to receive on it and rotate with a spool of thread, an adjustable brake on each support for regulating the resistance of its spindle to turning, and means extending from the end of said frame by said supports in succession operatively connected to said brakes for simultaneously operating said brakes, the connection between said operating means and brakes being separately adjustable for each brake, whereby the relative effect of the brakes may be varied.

5. In a device of the class described, the combination with a creel frame, of a series of similar spindle supports in a longitudinal line, spaced from each other and projecting laterally from said frame, a spindle rotatively mounted at one end in each of said supports and projecting in a horizontal line, each adapted to receive and so engage a spool as to rotate therewith, a brake at each support adapted, when operated, to frictionally resist rotation of the spindle mounted therein, a rod extending along said frame passing the successive supports in a hori zontal line and attached to a movable operating part of the brake at each support, and means at the end of said frame for longitudinally moving and adjusting the position of said rod, thus simultaneously regulating the braking action on each spindle and the resulting tension on the thread delivered.

6. In a device of the class described, the combination with a creel frame, of a series of similar spindle supports in a longitudinal brake strap on each support connected at one end to said support, extending downwardly under the spindle between its bearings, and terminating, in an upwardly extending end above said spindle provided with an opening, a fixed support at the end of the frame in line with the upper ends of said brake straps, a screw threaded rod passing through said fixed support and successively through the openings in said brake straps, a pair of adjustable; screw threaded nuts on said rod at each brake strap, closely fitting against its sides and a thumb nut on the end of said rod which projects through said fixed support.

'7. In a device of the class described, the combination with a spindle support adapted to be attached to a creel frame, having bearing openings therein for the spindle, a spindle rotativel mounted at one end in said bearing openings, adapted to receive a spool on its other end, a lateral projection on said spindle, near said support in the path of said spool in moving into position on the said spindle, the said projection being adapted to enter a depression in the end of said spool thus causing the spindle to rotate with the spool, as said spool is turned in unwinding the thread on it, a spring pressed pivoted latch mounted in the outer end of said spindle adapted, in one position, to permit the spool to pass to position on the spindle and, in another position, to extend across the outer end of the spool preventing outward movement on the spindle.

. In testimony whereof I hereunto affix my signature.

JOSEPH FRANK WATSON. 

